Electro-optic Panel Holding Member Corner Stress Relief
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Solution Overview
Problem
Liquid crystal panels in electronic instruments are prone to breakage due to stress concentration at corners when the device falls, particularly at protruded portions of single glass substrates.
Innovation Solution
An electro-optic apparatus with a holding member that does not support the corners or proximities of the panel, featuring a shoulder that declines from the contact area towards the apex and includes shock-absorbing members, preventing direct impact transfer and reducing stress concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the liquid crystal panel is held by the substantially entire circumference being bonded in the frame, then the panel is securely held and supported, but stress concentrates at the corners and protruded portions causing panel breakage during drop
Solution Approach 1:
The holding member features a shoulder with a recess that creates a non-contact zone at the corner regions of the liquid crystal panel. This local modification allows the majority of the panel perimeter to be supported while specifically excluding the vulnerable corner areas from direct contact, thereby preventing stress concentration at these weak points during impact events
Solution Approach 2:
The recess in the shoulder is designed to provide a gap or cushioning zone between the holding member and the corner portions of the panel. This pre-established space acts as a buffer that prevents direct force transmission to the corners during drop events, cushioning the panel against impact forces before stress can concentrate and cause breakage
Data Source
AI summary
An electro-optic apparatus includes: an electro-optic panel; and a holding member configured to hold at least the electro-optic panel, in which the holding member includes a shoulder configured to support at least part of a peripheral edge of the electro-optic panel, and the shoulder does not support the electro-optic panel in at least an area of a part of a corner and a proximity thereof.